Singh, Santosh Kumar, Jay Ram Patel, and Arvind Dangi. “Physicochemical, Qualitative and Quantitative Determination of Secondary Metabolites and Antioxidant Potential of Kalanchoe Pinnata (Lam.) Pers. Leaf Extracts”. Journal of Drug Delivery and Therapeutics 9, no. 1 (January 15, 2019): 220-224. Accessed September 18, 2019. http://jddtonline.info/index.php/jddt/article/view/2225.